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Fermyon Cloud Pricing, Features & Alternatives

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Runtime Platform · FaaS

Spin-based WebAssembly applications for local development and deployment to managed serverless cloud infrastructure.

Fermyon Cloud hosts applications built with Spin. It runs their WebAssembly components on demand and manages the runtime around them. Developers can move from local Spin development to hosted deployment without operating containers or runtime infrastructure.
Best for

Teams building compact Spin applications that want managed WebAssembly execution with integrated key-value and SQLite storage, without operating containers or runtime infrastructure.

Watch out for

Fermyon Cloud remains an open-beta, single-region service without an uptime SLA. Production deployments therefore depend on accepting a narrower availability and support commitment.

Workloads
  • AI Inference
  • APIs
  • Backend Services
  • Web Applications
Services
  • Managed Databases
  • Functions
  • Key-Value Store
Delivery
  • Managed

Development & Execution

Supported platform capabilities, execution environments, development technologies, deployment models, integrations, and triggers.

Runtimes

  • WebAssembly / WASI

Languages

  • C
  • C#
  • C++
  • Go
  • Java
  • JavaScript
  • Kotlin
  • Python
  • Ruby
  • Rust
  • Swift
  • TypeScript
  • Zig

Frameworks

  • Hono
  • Spin

Database support

  • SQLite

Deployment & packaging

  • Local Emulator
  • Serverless (Managed Runtime)

Integrations

  • GitHub

Triggers

  • HTTP Requests

Pricing

Published pricing structure, representative costs, and material billing factors.

Free Access
Free plan Available in public plans
Free Tier
Recurring free allowances
Commitment
Growth is billed monthly on a recurring basis.
Starting Price
$19.38 / month Growth

Fermyon Cloud Plans

Primary Pricing

Monthly subscription plans with fixed usage quotas for serverless WebAssembly applications.

Starter

$0 / month

A permanent free plan for getting started with Fermyon Cloud.

  • Up to 5 applications
  • 100,000 requests per month
  • 5 GB egress per month
Growth

$19.38 / month

Higher monthly quotas for larger Fermyon Cloud applications.

  • Up to 100 applications
  • 1 million requests per month
  • 50 GB egress per month

Free Tier

Recurring monthly quotas included with the Starter plan.

  • Applications: 5 applications
  • Requests: 100,000 requests per month
  • Key value storage: 1 GB
  • SQLite database storage: 1 GB
  • Egress: 5 GB per month

Enterprise Pricing

Custom Enterprise plans are available with tailored quotas, regions, and support.

Billing Commitment

Growth is billed monthly on a recurring basis.

Infrastructure & Availability

Where workloads run, how deployment is scoped, and what underlying infrastructure the platform depends on.

Fermyon Cloud deployments are region-scoped. Starter and Growth each include one deployment region, while Enterprise can provide custom region arrangements. Fermyon does not publish the physical location of its managed region or a complete selectable geography.

Execution

  • Single Region

Deployment scope

  • Regional

Infrastructure providers

  • Fermyon-operated infrastructure

Availability reviewed · Availability source

Resource & Execution Limits

Package size

100 MB

Starter and Growth plans

Handler time

30 seconds

Starter and Growth plans

HTTP body

10 MB

Starter and Growth plans

Execution rate

1,000/second

Starter and Growth plans

Security & Compliance

Security Controls

Secrets Management
Encrypted application variables; values are not listed Only mapped components receive a variable
Deployment Credentials
Personal access tokens Fermyon Cloud deployment and CI

FAQ

Is Fermyon Cloud free?
Yes. Fermyon Cloud has a free Starter allowance that includes up to five applications, 100,000 requests per month, and 1 GB of key-value storage.

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